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The Dietary Approaches to Stop Hypertension diet lowered systolic blood pressure in stage 1 isolated systolic hypertension

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 QUESTION: In patients with stage 1 isolated systolic hypertension (ISH), does the Dietary Approaches to Stop Hypertension (DASH) diet lower systolic blood pressure (SBP)?


Randomised (unclear allocation concealment*), unblinded,* controlled trial with 8 weeks of follow up (subgroup analysis of the DASH trial).


Multicentre study in the USA.


Among the 459 patients in the DASH trial, this study focused on 72 patients (mean age 54 y, 52% men) with stage 1 ISH (SBP 140 to 159 mm Hg and diastolic BP < 90 mm Hg).


After a 3 week run-in period on a typical American (control) diet, patients were allocated to 1 of 3 diets for 8 weeks: the DASH diet (n=23), which is rich in fruits, vegetables, and low fat dairy foods; a diet rich …

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  • * See glossary.

  • For correspondence: Dr T J Moore, Boston University Medical Center, Boston, MA, USA. tmoore{at}

  • Sources of funding: National Institutes of Health and the Office of Research on Minority Health.